BSC 2010 0M04 Quiz (Chapter 13) ​Solutions
*Disclaimer: I have made these problems to the best of my
ability. However, this is only an overview. Not all
information/answers are guaranteed to be accurate, and this
information may or may not apply to your class exam. ☺
1. Which of the following are the reproductive cells that transmit genes from one generation
to the next in both plants and animals?
a. Somatic Cells
b. ​Gametes
c. Locus
d. Chiasma
2. A scientist is interested in studying the event of crossing over (recombination) in mouse
gametes. She wants to label some of the mice with fluorescent dyes to better visualize it.
During what phase of the cell cycle should she look at these fluorescent DNA strands to
most effectively study recombination?
a. Anaphase 2
b. Telophase 1
c. Prophase 1
d. Metaphase 2
e. Anaphase 1
3. Which of the following is false concerning mitosis and meiosis?
a. Both of these processes allow genetic variation.
b. Both processes require DNA synthesis beforehand.
c. Both use the same order of events being prophase, metaphase, anaphase, and
telophase.
d. Meiosis results in halving of chromosomes in the daughter cells, while mitosis
reserves the same about of genetic material in the daughter cells.
4. Which of the following is a key difference between mitosis and meiosis?
a. Meiosis involves two divisions whereas mitosis only involves one.
b. There is no metaphase stage in meiosis.
c. Genetic mutations can only occur in meiosis, mitosis always results in identical
daughter and parent cells.
d. All answer choices are correct.
5. Crossing over occurs during which cycle of division?
a. Mitosis
b. Meiosis 2, Prophase 2
c. Meiosis 1, Metaphase 1
d. Meiosis 1, Prophase 1
e. Meiosis 2, Metaphase 2
f. None of the above are correct.
6. Which of the following statements regarding mitosis and meiosis is correct?
a. Mitosis only occurs in prokaryotes, including all bacteria, while meiosis occurs in
higher life forms.
b. Mitosis results in higher genetic variability than meiosis
c. Both A and B are correct
d. In the human body, mitosis occurs in somatic cells whereas meiosis occurs in sex
cells.
7. Crossing over is an event that contributes to the non-identical nature of gametes. Which
of the following is true regarding crossing over?
I. It occurs during prophase 1
II.It involves the exchange of genetic material between sister chromatids
III. It involves the exchange of genetic material between homologous chromosomes
IIII. It is a source of genetic variability that cannot be found in mitosis
a. I and III
b. II and IIII
c. I, III, and IIII
d. I, II, and IIII
8. Independent assortment of traits on different chromosomes is due to the random
alignment of different pairs of homologues. This alignment occurs during which of the
given phases?
a. Metaphase 1
b. Metaphase 2
c. Prophase 1
d. Prophase 2
9. Which of the following is true of both meiosis 1 and meiosis 2?
a. Sister chromatids separate in anaphase of meiosis 1, but not in meiosis 2.
b. The G2 phase precedes both.
c. Both include crossing over.
d. Both produce haploid cells.
10. A diploid female lizard produces diploid offspring that are genetically identical to herself.
This type of reproduction requires:
a. ​Meiosis
b. Mitosis
c. Mitosis, and then meiosis
d. None of the above
11. Chromosome A contains genes for an eye color of brown. Chromosome B contains genes
for hair color of brown. Chromosome C contains genes for an eye color of green. Which
of the following is true?
a. Chromosomes A and B are homologous
b. Chromosomes B and C are homologous
c. Chromosomes A and C are homologous
d. None of the chromosomes are homologous to one another
12. Suppose that a cell is unable to replicate its DNA. Which of the following would NOT be
present in this cell?
a. sister chromatids
b. centromere
c. DNA
d. genes
e. homologous chromosomes
13. True or False. If a parent cell contained 30 chromosomes, its daughter cells would
contain 15 following mitosis.
a. True
b. False
14. True or False. The cell below is diploid.
a. True
b. False
15. If a normal diploid cell has 8 chromosomes, then…
a. There are 8 homologous pairs of chromosomes per diploid cell
b. There are 8 chromatids per diploid cell between S phase and the first division of
meiosis
c. There are 4 chromosomes per cell after meiosis 1
d. Sperm Cells made from this diploid cell would have 8 chromosomes
16. During meiosis, chromosome number...
a. Doubles from the original cell, then divides in four for each daughter cell
b. Divides in four for each daughter cell
c. Doubles, then divides in half
d. Divides in half
e. Doubles
17. During meiosis 1…
a. Homologous chromosomes separate
b. Each sister chromatid becomes a chromosome
c. Sister chromatids separate
d. 4 daughter cells are formed from a single original cell
e. Two of the above are correct
18. True or False. A diploid parent cell is haploid after telophase 1 of meiosis.
a. True
b. False
19. A cell has 40 chromosomes during G1 phase. How many sister chromatids does that cell
have during prophase 1 of meiosis?
a. 10
b. 20
c. 30
d. 40
e. 80
20. True or False. Independent Assortment results in chromosomes that have different
combinations of alleles than they had before.
a. True
b. False
21. If the sperm of an animal contains 5 chromosomes, which of the following is true?
a. The animal normally has 5 chromosomes in its body cells
b. Each sperm cell contains 10 sister chromatids
c. The animal’s cells normally contain 10 homologous pairs of chromosomes
d. There are 20 sister chromatids per cell in G2 phase
22. Which of the graphs below best depicts change in chromosome number through the cell
cycle, beginning at G1, and ending after meiosis?
a. top left
b. top right
c. bottom left
d. bottom right
23. A human cell has 46 total or 23 pairs of chromosomes. Following mitosis, the daughter
cells would each have a total of ____ chromosomes. After meiosis I, the two daughter
cells would have ____ chromosomes, and after meiosis II, the four daughter cells would
each have ____ chromosomes.
a. 46, 46, 46
b. 46, 23, 23
c. 23, 23, 23
d. 46, 12, 23
Congratulations on making it through the practice quiz! I hope you did well ☺ If you have any
questions at all on solutions or concepts, just come visit me in SI! My hours are attached at the
top of the page. Just make sure to have at least attempted the problems beforehand.
Works Cited
"Meosis Practice Problems." ​1​. N.p., n.d. Web. 22 Mar. 2017.
"​Understanding Meiosis." ​Varsity Tutors​. N.p., n.d. Web. 20 Mar. 2017.